Dark arena : the Frenchman returns
(Book)

"Alec de Payns, espionage operative of the Y Division of the DGSE, France’s famed foreign intelligence service, is tasked with tracking down an agent of influence sending highly classified material against the Kremlin to embassies all over Europe. A deadly conspiracy is aligning the West against Russia. But who is behind it? And to what end? The clues lead to a secret meeting of businessmen, terrorists, and mercenaries on a luxury yacht in the Mediterranean, which de Payns must infiltrate. What he discovers sets off a Europe-wide manhunt in a desperate scramble to prevent an international catastrophe." --publisher's website.